Device for cleaning furnace-flues.



S. I. ADAMS.

I DEVICE FOR CLEANING FURNACE FLUES. 1 APPLICATION FILED DEC- I0, I912.

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Patented Oct. 24, 1916.

s. 1. ADAMS.

2 SHEETS-SHEET 2.

DEVICE FOR CLEANING FURNACE FLUES. APPLICATI ON FILED DEC-10. i912.

Wit-wow i ed for varlous types 'of'furnaces, 1t 1s especially designedfor hot-air furnaces, and I will illustrate and describe the improvementT sectional View taken throughv the flue of a f scale than thedisclosure of Fig. 1. Fig. 3

SAMUEL J. ADAMS, 0FDETROIT,iMICI-IIGAII..

DEVICE FOR. CLEANING FURNACE-BLUES.

To all whom it may concern:

Be it known that I, SAMUEL J. ADAMS, a citizen of the United States ofAmerica, residingat Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Devicesfor-Cleaning FurnaceeFlues, of which the following is a specification,reference being-had therein to the accompanying drawings.

My invention relates to a device for cleaning furnace'flues and hasamong :theobjects thereof .to provide a simple and eflicient means forthoroughly cleaning the flue; to

providea structure that may be readily appliedto the furnace and ifdesired, may remain'permanently. inthe fiuewithoutinterferingawiththeoperation of the latter.

inafter appear.

Theinvention consists of the peculiarconstruction, arrangement andcombination of parts as more fully hereinafter described andparticularly pointed out'in'the claims.

While my invention may be readily adapt- I Other objects of theinvention will hereapplied to a furnace-of the latter type.

In thedrawings, Figure l is ahorizontal hotair .furnace, looking down onthe cleaning device disposed within the flue. Fig. 2 is a sectional viewtaken on line X X of Fig. l andshowing the cleaning device on a largerthrough the fuel door. V As this flue is c'ir-' cular'it is not readilycleaned, particlularly the portion thereof atthe back of the. furnace.WVith my improved device, however, the entire flue may be easily andquickly cleaned and the deposit in the flue drawn to the frontofthefurnace,lfrom where it may be removed through the fuel door or dis-Specificat'ionof Letters'latent. Patented Oct I ApplicationfiledDecember 10,1912. I Serial No. 735,887.'

charged through the dust leads to the ash-pit.

As shown, the device comprises an endless-.circularcleaner of a size toextend com- .pletely aroundtheflue and formed of a plurality of spacedscrapers 1G. secured together by connecting links Preferably thescrapers and the linksare formed as an integralcasting vhile inorder toallow .the de vice to be applied .to the furnace after the passage Ethat latter is assembled, the cleaner is formed of thelinksI-I of asizeto be inserted through the .fuel door into engagement with the, flue.The-meetingxendsof adjacent sections have a detachable engagement, asindicated at K.

The members G are eachof a configuration to fitthe cross-section of thebottom portionof the flue, but are of aheight to project only-a slightdistance above the fluebottom so as notito-restrict the size ofthe fluetoany appreciable extent. Thus, by moving the cleaning device around'theflue as by engaging a hook L insertiblethrough the fuel door with thescrapers, the-deposit. in the bottom of the flue may be drawn to thefront of the latter and removed.

In orderto cleanzthe side walls and the top portion of the flue Iprovide a brush M 'whichiis adapted to be secured to the circularcleaner F. This brush is of a width and height to engage the walls ofthe chamber A, and durin the rotationof the endless memberiwillefliciently cleanthe walls. The base N of the :brush islongitudinally recessed at O toreceive a link Hand carries a projectionP at one end which is inserted through an "opening Q in one ofthescrapers.

R is anaperture xtending transversely of the base adjacent the oppositeend of the latter, and S an opening in the-link H adapted to aline withthe aperture B when the projections P are in engagement with the ZopeningsQ, and'T is a bolt passing through the=alining aperture andopenings and serving to secure the base of the brush to the link At thefront and rear the brush is. protected by guards U; A central supportingweb or arm L formed integral with the base N is disclosed in Figs. 2 and3 and provides an additional supporting means for-the brush.- V

In use, after theflue is cleaned the brush may be readily detached byremoving the bolt T and disengaging the projections P from the openingsQ; 7

From the foregoing description it is apparent the cleaning member doesnot in any way interfere withthe operation of the flue and therefore,can be made a permanent part of the furnace. Also the flue can becleaned while the furnace is inoperation.

l/Vhile I have shown and described the pre' ferred form ofmy invention,I do not desire to limit my protection to the exact structure shown, butconsider the invention sufliciently broadto cover various modificationsand changes that may be readily made.

What I claim as my invention is l." A flue cleaner including a sectionalcontinuous flexible member, a series of scrapers carried by said memberand traversing the baseofthe flue and a vertically extending brushsupported by said member, said brush contacting with the side walls ofthe flue and distributing the soot and foreign matter in ;the path ofthe scrapers, the sections being of a size whereby the same may beseparately inserted through-an opening formed in the stove in which thecleaner is positioned.

2. The combination with a'furnace having an annular flue, of an endlesscleaning device located therein for movement thereabout and including aplurality of links connected together, scrapers carried by the links ofa contourto fit the bottom of the flue and resting thereupon, andoperating means for the cleaning device, the flue-having an openingwhereby said operating means maybe inserted within the same t actuatethe cleaning device;

3. A cleaner for the fluesof furnaces in which the furnace is formedwith an annular flue-including a plurality of hingedly con- -nectedsections forming a continuous memher disposed to traverse the flue atits base, a series of scrapers carried by said members, and a brushsupported by one of the members and extending vertically within the fluewhereby the soot will be removed fromrthe sides of the flue anddeposited within the path of the scrapers, the sections being of suchconfiguration that the same may be inserted independently through anopening formed in thestove in which the device is positioned.

4. The combination with a furnace flue of members for the brushsupported at the front and rear thereof for movement therewith, andoperating means for the cleaning device.

6. The combination' with a furnace having an annular flue, of an endlessflue cleaning device located therein for movement thereabout andincluding a plurality of connected links, scrapers carried by the linksof a contour to fit the bottom of the flue and resting thereupon, and abrush of a width to engage the side walls of the-flue, said brush beingprovided with guards in front and rear thereof. I i

7. The combination with a furnace having anannular flue provided with anopening, and a door therefor, of a cleaning device located within theflue and capable of a rotary movement thereabout, said cleaning devicebeing composed of a series of pivoted members adapted to remain in theflue at all times, a support carried by the cleaning device, and a brushmounted upon sald support, .the said support being detachably mountedupon .the cleaning device, and the brush and support being of a size topermit the insertion thereof within the flue through the flue openingwithout disturbing the cleaning device located in the flue.

8. The combination with a furnace having an annular flue provided withan opening, a door therefor, a cleaning device located within the flueand capable of a rotary movement thereabout, said cleaning device beingadapted to remain within the flue at all times, and a brush detachablymounted on said cleaning device,the said brush being of a size to permitits insertion throughthe flue opening in the wall of the furnace withoutdisturbing the cleaning device.

' 9. Thecombinationwith a furnace having an annular flue of an endlesscleaning device located within the flue for movement thereabout, saidcleaning device being provided with a scraper at the lower portion ofthe flue and abrush engaging the upper portion of the flue.

The combination witha furnace flue having an openlng and a doortherefor, of

i an endless cleaning device located within the flue for movementthereabout, said device including a plurality of sections, each of saldsections comprlsmg a link having a cleaning member formed integraltherewith,

adjacent links being provided with detachable connections, each of saidsections being of a size to permit the same to be inserted in placewithin the flue through the flue opening, and operating means for thecleaning device. v

11. The combination with a furnace flue, ofa cleaning device arrangedfor movement within the flue, said cleaning device including a linkmember provided with a cleaning disk formed integral therewith andarranged to rest upon the bottom of the flue, said disk being providedwith apertures,.a

brush engaging the upper portion of the flue and detachably secured tothe link, said brush having a base provided with a recess to receive aportion of the link lugs at one end of the base of the brush engagingthe apertures of the disk, and a -movable pin passing through openingsin the brush base and link at the other end of the brush, and operatingmeans for said cleaning device.

12. The combination with a furnace having an annular flue provided withan open-' the Walls of the flue, the brush being of a size to beinserted 'in place within the flue through the flue opening.

13. The combination with a substantially" annular furnace flue, of acleaning device comprising a member having a contour to fit the bottomportion of the flue and being restricted in height so as not to obstructthe flue, a link extending around the flue and to which said member isattached, and a brush of a width to engage the opposed walls of the flueand of substantially the same height as the latter, said brush beingremovably secured to said cleaning device.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL J. ADAMS.

Witnesses:

W. J. BELKNAP, JAMES P. BARRY.

. Lopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents.

- Washington, D. O.

